/**
* @since 1.0
* @uses getChunkClass()
* @uses formatOffset()
* @uses Delta::toBinary()
* @uses Util::binaryToHex()
* @uses Event::toBinary()
* @uses Event::getLength()
* @uses Delta::getLength()
*
* @param Event $event
* @return string
*/
public function beforeEvent(Event $event)
{
if ($this->delta === null) {
return '';
}
$class = $this->getChunkClass($event);
$text = "<tr class=\"{$class}\">" . $this->formatOffset($this->offset);
// -- all of this goofy looking math just formats everything prettily -- //
$deltaHex = Util::binaryToHex($this->delta->toBinary());
$delta = '<span class="delta">' . wordwrap(implode(' ', $deltaHex), 23, '<br />') . '</span>';
$eventHex = Util::binaryToHex($event->toBinary());
$lineLength = 23 - strlen(implode(' ', $deltaHex)) % 23;
$eventSegment = wordwrap(implode(' ', $eventHex), $lineLength, '|');
$bar = strpos($eventSegment, '|');
if ($bar !== false) {
$eventSegment = substr($eventSegment, 0, $bar) . '<br />' . wordwrap(substr($eventSegment, $bar + 1), 23, '<br />');
}
// -- end goofiness -- //
$text .= '<td><tt>' . $delta . ' ' . $eventSegment . '</tt></td>';
$this->offset += $event->getLength() + $this->delta->getLength();
return $text;
}
public function testBinaryToHex()
{
$binary = pack('C3', 0x0, 0x80, 0x9a);
$this->assertSame(array('00', '80', '9A'), Util::binaryToHex($binary));
}
